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Other non-current assets (Information) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Other Noncurrent Assets [Abstract]    
Surplus in employees' defined benefit plans [1] $ 134 $ 112
Non-current inventories 77 74
Receivables from equity-accounted investees sale 9 9
Long term deposits 8 11
Investments in equity-accounted investees 3 2
Derivative designated as a cash flow hedge 3 1
Other 27 30
Total other non-current assets $ 261 $ 239
[1] See Note 16.